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聚合物改性再生骨料渗透性混凝土净水性能的试
作者：沈万岳，汪洋，汤金洁
（浙江建设职业技术学院，浙江 杭州 311231）
摘要：渗透性混凝土是“海绵城市”建设的重要材料之一，以再生骨料、聚合物乳液等为原材料制备聚合物改性再生骨料渗透性混凝土，研究了混凝土的力学性能、透水性能和水体净化的潜能。结果表明，聚合物改性再生骨料渗透性混凝土的性能指标符合工程应用的技术要求；同时，这类混凝土表面吸附的微生物能去除水体中的磷、氮元素，且这2种导致水体富营养化的主要物质消耗量与渗透性混凝土的骨料粒径和浆骨比有关。
关键词：渗透性混凝土；聚合物；再生骨料；净水性能
中图分类号：TU528.2 文献标识码：A 文章编号：1001-702X（2019）05-0080-04
An experimental investigation on water purification properties of
polymer-modified recycled aggregate porous concretes
SHEN Wanyue，WANG Yang，TANG Jinjie
（Zhejiang College of Construction，Hangzhou 311231，China）
Abstract：Porous concrete is one of the important materials in constructing "Sponge City". In this paper，green porous concrete was prepared with recycled concrete aggregates，polymer latex and other ingredients. Mechanical properties，coefficient of permeability and potential of water purification of the green concrete was experimentally investigated. The results show that，on the one hand，polymer modified porous recycled aggregate concrete meets the standards and technical specifications in China. On the other hand，organisms attached on the internal surface of the porous concrete can remove phosphorus（P） and nitrogen（N） which
are the major elements causing eutrophication of urban water. Moreover，the total consumptions of P and N are associated with size of aggregate and paste/aggregate ratio by volume.
Key words：porous concrete，polymer，recycled aggregate，water purification properties